validations of text box in javascript

Question

Hi All, I have to do one validation in javascript. I have text box into which user should not allow to enter value which is more that 5.00 means user can enter value which is less than 5.00. so please suggest such validation in javascript

Answer 1

var textboxObj = document.getElementById("textbox");
if(parseFloat(textboxObj.value) <= 5){ // to ensure user has entered only numbers
    alert("success");
}else {
    alert("Invalid input");
}